<template>
  <div class="login">
    <el-image class="logo" :src="require('@/assets/image/profile2.png')"></el-image>
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">连云港兴鑫烧结系统</h3>
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon"/>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon"/>
        </el-input>
      </el-form-item>
      <Verify
        @success="capctchaCheckSuccess"
        :mode="'pop'"
        :captchaType="'blockPuzzle'"
        :imgSize="{ width: '330px', height: '155px' }"
        ref="verify"
      ></Verify>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width:100%;"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2020 MCC All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
  import Cookies from "js-cookie";
  import {encrypt, decrypt} from '@/utils/jsencrypt'
  import Verify from '@/components/Verifition/Verify'
  import {cookiePrefix} from '@/settings'
  import {getCaptchaConfig} from '@/api/login'

  export default {
    name: "Login",
    components: {Verify},
    data() {
      return {
        codeUrl: "",
        cookiePassword: "",
        loginForm: {
          username: "",
          password: "",
          rememberMe: false,
          code: ""
        },
        loginRules: {
          username: [
            {required: true, trigger: "blur", message: "用户名不能为空"}
          ],
          password: [
            {required: true, trigger: "blur", message: "密码不能为空"}
          ]
        },
        loading: false,
        redirect: undefined,
        captchaEnabled: false
      };
    },
    watch: {
      $route: {
        handler: function (route) {
          this.redirect = route.query && route.query.redirect;
        },
        immediate: true
      }
    },
    created() {
      this.getCookie()
      this.getCaptchaConfig()
    },
    methods: {
      getCaptchaConfig() {
        getCaptchaConfig().then(res => {
          this.captchaEnabled = res.data
        })
      },
      getCookie() {
        const username = Cookies.get(cookiePrefix + '-username')
        const password = Cookies.get(cookiePrefix + '-password')
        const rememberMe = Cookies.get(cookiePrefix + '-rememberMe')
        this.loginForm = {
          username: username === undefined ? this.loginForm.username : username,
          password: password === undefined ? this.loginForm.password : decrypt(password),
          rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
        }
      },
      capctchaCheckSuccess(params) {
        this.loginForm.code = params.captchaVerification
        this.login()
      },
      handleLogin() {
        this.$refs.loginForm.validate(valid => {
          if (valid) {
            if (this.captchaEnabled) {
              this.$refs.verify.show()
            } else {
              this.login()
            }
          }
        })
      },
      login() {
        this.loading = true;
        if (this.loginForm.rememberMe) {
          Cookies.set(cookiePrefix + '-username', this.loginForm.username, {expires: 30})
          Cookies.set(cookiePrefix + '-password', encrypt(this.loginForm.password), {expires: 30,})
          Cookies.set(cookiePrefix + '-rememberMe', this.loginForm.rememberMe, {expires: 30})
        } else {
          Cookies.remove(cookiePrefix + '-username')
          Cookies.remove(cookiePrefix + '-password')
          Cookies.remove(cookiePrefix + '-rememberMe')
        }
        this.$store.dispatch("Login", this.loginForm).then(() => {
          this.$router.push({path: this.redirect || "/"}).catch(() => {
          })
        }).catch(() => {
          this.loading = false;
        })
      }
    }
  };
</script>

<style lang="scss" scoped>

  .login {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-image: url("../assets/image/login-background.jpg");
    background-size: cover;
    .logo {
      position: absolute; /* 绝对定位 */
      //background-image: url("../assets/image/profile1.png");
      top: 0px; /* 根据需要调整 */
      left: 0px; /* 根据需要调整 */
      height: 10%;
    }
  }

  .title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
  }

  .login-form {
    border-radius: 6px;
    background: #ffffff;
    width: 400px;
    padding: 25px 25px 5px 25px;

    .el-input {
      height: 38px;

      input {
        height: 38px;
      }
    }

    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 2px;
    }
  }

  .login-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
  }

  .login-code {
    width: 33%;
    height: 38px;
    float: right;

    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }

  .el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
  }

  .login-code-img {
    height: 38px;
  }
</style>
